ENERGY-SPECTRA AND ANGULAR-DISTRIBUTION OF INTERMEDIATE-MASS FRAGMENTS EMITTED IN AU/AG(P,X) REACTIONS WITH EP=12 GEV - (THE FIRST RESULT OF THE KEK-12GEV-PS EXPERIMENT E288)

被引：0

作者：

TANAKA, KH

YAMANOI, Y

OCHIISHI, H

AKIYOSHI, H

KOUDA, S

NAKAMURA, H

MORINOBU, S

TANAKA, Y

KIMURA, K

SHIBATA, T

SUGAYA, Y

YASUDA, K

ITO, H

MURAKAMI, T

机构：

[1] KYUSHU UNIV,DEPT PHYS,FUKUOKA 812,JAPAN

[2] NAGASAKI INST APPL SCI,NAGASAKI 85101,JAPAN

[3] UNIV TOKYO,INST NUCL STUDY,TOKYO 188,JAPAN

[4] TOKYO UNIV AGR & TECHNOL,TOKYO 184,JAPAN

[5] KYOTO UNIV,DEPT PHYS,KYOTO 606,JAPAN

来源：

NUCLEAR PHYSICS A | 1995年 / 583卷

关键词：

D O I：

暂无

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The latest results of the first nuclear multifragmentation experiment, E288 [1], at the KEK 12 GeV Proton Synchrotron (KEK-PS) are presented. The energy spectra of intermediate mass fragments (IMFs) were measured inclusively from 30 degrees to 150 degrees with 20 degrees step in the lab. system. Coincidence measurements with one extra IMF emitted toward 90 degrees direction in the opposite hemisphere were performed at the same time. Characteristic sideward flow of IMFs toward 70 degrees direction was found with the usual isotropic component. This isotropic component was strongly suppressed in the coincidence measurement. These facts may indicate the formation of unusually shaped nuclear matter such as an expanding toroid.

引用

页码：C581 / C584

页数：4